True mixture versus effective one component fluid models of asymmetric binary hard sphere mixtures: a comparison by simulation

被引：29

作者：

Malherbe, JG ^{[1
]}

Amokrane, S ^{[1
]}

机构：

[1] Univ Paris 12, Fac Sci & Technol, Grp Phys Milieux Denses, F-94010 Creteil, France

来源：

MOLECULAR PHYSICS | 2001年 / 99卷 / 04期

关键词：

D O I：

10.1080/00268970010012617

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The pair distribution function of solute particles determined by simulation of true mixtures with diameter ratios of 5, 10 and 20 is compared with that obtained in their representation by effective one-component fluids with pairwise additive interactions. The pair distribution function near contact is found to be overestimated by the effective fluid approach, for all size ratios. In the domain of the phase diagram accessible to the simulation algorithm, the deviation is found to be moderate. Its consequences for the coexistence lines are discussed.

引用

页码：355 / 361

页数：7

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